Heterozygous means that an organism has two different alleles of a gene. For example, pea plants can have red flowers and either be homozygous dominant (red-red), or heterozygous (red-white). If they have white flowers, then they are homozygous recessive (white-white).
Jon Gosselin opened up to Us Weekly about working at TGI Fridays in Lancaster, Pennsylvania, explaining that he took the job because he has a passion for cooking and charity.
David Howell is executive vice president and chief information officer at McEnearney Associates. Stan Humphries, chief economist at Zillow and architect of the Zestimate, responds to Howellâs criticisms in his own commentary. To read Zillowâs rebuttal, click here.